Mary has saved 17.50 in the past 3 weeks. How much has she saved in one week?

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?